ROKSAN OJAN 3 any info?

[xykapec]

Guys, hello.
I have pair of these speakers.

https://www.roksan.com/en/blog/the-ojan-3-and-3x-is-released/
Originally they had some nice tweeters, but looks like they were damaged and original voice coil was replaces by something else taken from JBL 62 Titanium Laminate.

If anyone can post some info on original tweeters will be very good.

 

[planet10]

Kool looking.

25mm soft dome tweeter with a big bezel. With felt over top.

dave

 

[planet10]

Thw earlier darius used a SEAS. So that is a good bet as to the source of the Ojan T.

2) Seas (similar to K26FX, but only single magnet, supronyl-cone+Ferrofluid)
either
http://www.seas.no/images/stories/vintag…h297_25tnft.pdf
or
http://www.seas.no/images/stories/vintag…h253_1_dome.pdf

https://www.diyaudio.com/community/...or-stands-other-brands-wanted-to-know.225588/

dave

 

[xykapec]

Thanks Dave, but I would like to have some more details.
Maybe some replacement options.

 

[xykapec]

Speaker is built like a tank.
I opened the binding posts cover on a back.
Looks like HF driver crossover is sitting completely on this cover.
I am not completely sure because there can be some additional parts hidden inside.
But output wire is thin one, same wire I have on HF unit input.

Speaker inside is full of dampening material, which is pretty solid.
I did not get to LF driver crossover because it is sitting somewhere inside of speaker.
Tried to go with big wires and got with my fingers to really huge inductance unit, but not further.

So, looking on scheme below, can somebody suggest what impedance of original HF driver was? 6 ohms? 8 ohms?

 

[wolf_teeth]

That is a 17 watt resistor not a 1.7 Watt.
ICW = ClarityCap.

 

[xykapec]

That is a 17 watt resistor not a 1.7 Watt.
ICW = ClarityCap.

Thanks, good catch 🙂
For some reason I can not edit my post above to fix the mistake.

Do you guys think this is original crossover from 1993? Or some rebuild?

 

[tiefbassuebertr]

some information:
short form data (whole Roksan chain incl. turntable):
http://www.changye.com.cn/bbs/forum.php?mod=viewthread&tid=12047
https://www.my-hiend.com/vbb/showthread.php?172-【Roksan-達人】家訪lyyoung

Review "What HiFi" December 1998 - go to
https://www.ebay.co.uk/itm/285562280200
and Hifi-Vision 10/94 - go to the TOC under
https://www.springair.de/de/hifi-vision-10/1994-zeitschrift/l9819
some offers of this magazine:
https://www.ebay.de/itm/184071460877
https://www.ebay.de/itm/114000478101
maybe one of the members can upload the reviews.

The drivers (chassis) from SEAS probably are predecessors from those under
https://www.seas.no/index.php?optio...d=108:h1659-08-u22rexp-sl&catid=44&Itemid=238
https://www.seas.no/images/stories/prestige/pdfdatasheet/H1659-08_U22REX_P-SL_Datasheet.pdf
and
https://www.seas.no/index.php?optio...fw&catid=45:seas-prestige-tweeters&Itemid=239
https://www.seas.no/images/stories/prestige/pdfdatasheet/h1318_29tff_w_datasheet.pdf
or
https://www.seas.no/index.php?optio...dc&catid=45:seas-prestige-tweeters&Itemid=239
https://www.seas.no/images/stories/prestige/pdfdatasheet/h1149_27tdc_datasheet.pdf

found under
https://www.seas.no/index.php?option=com_content&view=category&id=44&Itemid=461
https://www.seas.no/index.php?option=com_content&view=category&id=45&Itemid=462

according the attached images there are different drivers in use.

more URLs:
https://pinkfishmedia.net/forum/threads/roksan-ojan-3-speakers.275710/
https://pinkfishmedia.net/forum/threads/roksan-ojan-3-speakers-£150.285148/
https://theartofsound.net/forum/showthread.php?76164-FS-Roksan-Ojan-3-speakers
https://gshifi.lt/koloneles/roksan-ojan-3-garso-koloneles/
https://www.canuckaudiomart.com/det...-and-collectable-british-hifi/images/3406042/
https://www.kleinanzeigen.de/s-anze...er-lautsprecher-high-end/2626070326-172-16351
https://m.blog.naver.com/whoareyou16/222849215162
https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=biosoft&logNo=40104665992
https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=biosoft&logNo=40104665992
https://www.gumtree.com/p/speakers/roksan-ojan-speakers-/1426490370
https://archiwum.allegro.pl/oferta/roksan-ojan-3-i9775174757.html
https://archiwum.allegro.pl/oferta/roksan-ojan-3-i9775174757.html
https://www.hifido.co.jp/sold/11-58995-10011-00.html?LNG=E
https://gshifi.lt/koloneles/roksan-rok-one-garso-koloneles/
https://www.diyaudio.com/community/...or-stands-other-brands-wanted-to-know.225588/


Ojan 3x
https://www.audiogon.com/listings/f...-21-speakers-85737-oro-valley-az#&gid=1&pid=3
Building outdoor crossover network
https://www.hifiwigwam.com/threads/...crossover-for-a-pair-of-roksan-ojan-3s.58657/
Ojan 3s (Subwoofer)
https://www.hifido.co.jp/sold/13-76859-01512-00.html?LNG=E

 

[tiefbassuebertr]

Ojan 3+3S images

 

[tiefbassuebertr]

Ojan 3 or 3x - other drivers

 

[tiefbassuebertr]

Roksan Ojan 3 usual drivers

 

[tiefbassuebertr]

In the attachment the SEAS drivers:

• SEAS H699-06 ohm tweeter
• SEAS H700-08 ohm bass

both custom made - so I think.

 

[tiefbassuebertr]

Today I receive this reply from SEAS concerning driver-replacements for ROKSAN's Ojan 3:

Betreff: SV: Replacement for Vintage drivers H699 and H700 from Roksan Ojan 3
Hi, the U22REX/P is the closest for the woofer.
https://www.seas.no/index.php?optio...d=108:h1659-08-u22rexp-sl&catid=44&Itemid=238
And the 27TFF is very similar to the tweeter:
https://www.seas.no/index.php?optio...icle&id=51:h0831-06-27tff&catid=45&Itemid=239
Med vennlig hilsen/Kind regards
SEAS Fabrikker AS